Hello there, i have a valve running through my left breast which is near to the chest wall, the doctor felt my lump and send me for a mammogram, but breast tissue was all healthy, but as it s near my chest wall, at the base of my breast, i feel as though they we not able to x-ray that part, i am having terrible burning which is at the side of the breast and under my left armpit, yesterday every time i exhaled or inhaled it was very painful, what could this be please, my mum and other female relatives have since passed away due to breast and secondary breast cancer, please would you help me distinguish what this could be thank you ?